Question

COMPUTE THE DIFFERENTIAL OF F AND FIND THE DIRECTIONA DERIVATIVE Vp FOR F=SIN(XY)COS(XZ)

Answer 1

\[
df =\frac{\partial f}{\partial x}dx +\frac{\partial f}{\partial y}dy
\]

Answer 2

Find that first.

Answer 3

YCOSXDX

Answer 4

Try again... use the product rule.

Answer 5

WRONG

Answer 6

OHHK

Answer 7

YCOS(XY)COS(XZ)-XSIN(XZ)SIN(XY)+XCOS(XY)COS(xZ)

Answer 8

THEN?

Answer 9

I NEED HELP!

Answer 10

YCOS(XY)COS(XZ)-ZSIN(XZ)+XSIN(XY)COSXZ